./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:04:07,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:04:07,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:04:07,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:04:07,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:04:07,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:04:07,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:04:07,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:04:07,482 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:04:07,482 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:04:07,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:04:07,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:04:07,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:04:07,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:04:07,484 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:04:07,484 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:04:07,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:04:07,485 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:04:07,486 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:04:07,486 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:04:07,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:04:07,490 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:04:07,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:04:07,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:04:07,491 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:04:07,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:04:07,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:04:07,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:04:07,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:04:07,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:04:07,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:04:07,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:04:07,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:04:07,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:04:07,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:04:07,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:04:07,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:04:07,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:04:07,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:04:07,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:04:07,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:04:07,498 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:04:07,498 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:04:07,498 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:04:07,498 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-20 22:04:07,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:04:07,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:04:07,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:04:07,788 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:04:07,788 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:04:07,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-20 22:04:09,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:04:09,399 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:04:09,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-20 22:04:09,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a54ab62/a4a8b490e4474af2a1a31154c953081a/FLAG28020acf8 [2024-11-20 22:04:09,789 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a54ab62/a4a8b490e4474af2a1a31154c953081a [2024-11-20 22:04:09,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:04:09,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:04:09,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:04:09,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:04:09,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:04:09,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:04:09" (1/1) ... [2024-11-20 22:04:09,802 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a925541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:09, skipping insertion in model container [2024-11-20 22:04:09,802 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:04:09" (1/1) ... [2024-11-20 22:04:09,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:04:10,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:04:10,102 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:04:10,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:04:10,145 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:04:10,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10 WrapperNode [2024-11-20 22:04:10,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:04:10,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:04:10,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:04:10,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:04:10,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,189 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 189 [2024-11-20 22:04:10,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:04:10,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:04:10,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:04:10,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:04:10,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,218 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-20 22:04:10,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:04:10,234 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:04:10,234 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:04:10,234 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:04:10,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (1/1) ... [2024-11-20 22:04:10,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:04:10,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:10,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 22:04:10,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 22:04:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:04:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:04:10,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:04:10,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-20 22:04:10,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 22:04:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 22:04:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 22:04:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:04:10,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:04:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 22:04:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 22:04:10,328 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 22:04:10,412 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:04:10,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:04:10,699 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:04:10,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:04:10,996 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:04:10,997 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-20 22:04:10,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:10 BoogieIcfgContainer [2024-11-20 22:04:10,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:04:11,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:04:11,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:04:11,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:04:11,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:04:09" (1/3) ... [2024-11-20 22:04:11,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be68c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:04:11, skipping insertion in model container [2024-11-20 22:04:11,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:04:10" (2/3) ... [2024-11-20 22:04:11,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be68c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:04:11, skipping insertion in model container [2024-11-20 22:04:11,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:10" (3/3) ... [2024-11-20 22:04:11,007 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-20 22:04:11,022 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:04:11,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-20 22:04:11,022 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:04:11,101 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-20 22:04:11,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 49 transitions, 119 flow [2024-11-20 22:04:11,186 INFO L124 PetriNetUnfolderBase]: 3/46 cut-off events. [2024-11-20 22:04:11,187 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-20 22:04:11,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 3/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 117 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-20 22:04:11,192 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 49 transitions, 119 flow [2024-11-20 22:04:11,196 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 44 transitions, 103 flow [2024-11-20 22:04:11,210 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:04:11,219 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@62a1df3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:04:11,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-20 22:04:11,224 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:04:11,227 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 22:04:11,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:04:11,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:11,229 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 22:04:11,229 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:11,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:11,234 INFO L85 PathProgramCache]: Analyzing trace with hash 571754, now seen corresponding path program 1 times [2024-11-20 22:04:11,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:11,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698386395] [2024-11-20 22:04:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:11,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:11,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:11,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698386395] [2024-11-20 22:04:11,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698386395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:11,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:11,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401640269] [2024-11-20 22:04:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:11,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:11,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:11,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:11,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:11,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:11,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:11,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:11,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:11,998 INFO L124 PetriNetUnfolderBase]: 1238/1887 cut-off events. [2024-11-20 22:04:11,999 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-20 22:04:12,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3823 conditions, 1887 events. 1238/1887 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9810 event pairs, 1060 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 3526. Up to 1802 conditions per place. [2024-11-20 22:04:12,023 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 30 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-20 22:04:12,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 171 flow [2024-11-20 22:04:12,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:12,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:12,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-11-20 22:04:12,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4642857142857143 [2024-11-20 22:04:12,038 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 103 flow. Second operand 4 states and 91 transitions. [2024-11-20 22:04:12,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 171 flow [2024-11-20 22:04:12,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 162 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 22:04:12,054 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 117 flow [2024-11-20 22:04:12,056 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2024-11-20 22:04:12,061 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-20 22:04:12,061 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 117 flow [2024-11-20 22:04:12,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:12,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:12,062 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 22:04:12,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:04:12,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:12,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:12,063 INFO L85 PathProgramCache]: Analyzing trace with hash -146170172, now seen corresponding path program 1 times [2024-11-20 22:04:12,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:12,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567761467] [2024-11-20 22:04:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:12,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:12,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:12,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:12,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567761467] [2024-11-20 22:04:12,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567761467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175733822] [2024-11-20 22:04:12,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:12,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:12,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:12,250 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:12,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:04:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:12,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:12,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:12,375 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:12,375 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:04:12,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175733822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:12,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:04:12,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 22:04:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300940462] [2024-11-20 22:04:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:12,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 22:04:12,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:12,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 22:04:12,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:04:12,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:12,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:12,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:12,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:12,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:12,656 INFO L124 PetriNetUnfolderBase]: 1238/1886 cut-off events. [2024-11-20 22:04:12,657 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-20 22:04:12,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3783 conditions, 1886 events. 1238/1886 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 9824 event pairs, 1060 based on Foata normal form. 1/1389 useless extension candidates. Maximal degree in co-relation 3756. Up to 1797 conditions per place. [2024-11-20 22:04:12,670 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 26 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-20 22:04:12,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 43 transitions, 179 flow [2024-11-20 22:04:12,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:04:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:04:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-20 22:04:12,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2024-11-20 22:04:12,674 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 117 flow. Second operand 6 states and 112 transitions. [2024-11-20 22:04:12,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 43 transitions, 179 flow [2024-11-20 22:04:12,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 43 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:12,677 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 124 flow [2024-11-20 22:04:12,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-11-20 22:04:12,678 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-20 22:04:12,679 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 124 flow [2024-11-20 22:04:12,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:12,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:12,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 22:04:12,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 22:04:12,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:12,885 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:12,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:12,886 INFO L85 PathProgramCache]: Analyzing trace with hash -144170786, now seen corresponding path program 1 times [2024-11-20 22:04:12,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:12,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331607876] [2024-11-20 22:04:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:12,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:12,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:12,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:12,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331607876] [2024-11-20 22:04:12,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331607876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:12,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:12,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:12,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881265201] [2024-11-20 22:04:12,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:12,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:12,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:12,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:12,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:12,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-20 22:04:12,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:12,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:12,995 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-20 22:04:12,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:13,253 INFO L124 PetriNetUnfolderBase]: 1275/1998 cut-off events. [2024-11-20 22:04:13,253 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-20 22:04:13,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4001 conditions, 1998 events. 1275/1998 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 10160 event pairs, 983 based on Foata normal form. 51/1579 useless extension candidates. Maximal degree in co-relation 3580. Up to 1527 conditions per place. [2024-11-20 22:04:13,265 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 45 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2024-11-20 22:04:13,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 262 flow [2024-11-20 22:04:13,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:13,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:13,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-20 22:04:13,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5918367346938775 [2024-11-20 22:04:13,270 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 124 flow. Second operand 4 states and 116 transitions. [2024-11-20 22:04:13,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 262 flow [2024-11-20 22:04:13,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 60 transitions, 240 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-20 22:04:13,273 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 133 flow [2024-11-20 22:04:13,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2024-11-20 22:04:13,274 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-20 22:04:13,275 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 133 flow [2024-11-20 22:04:13,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:13,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:13,276 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 22:04:13,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 22:04:13,276 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:13,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:13,277 INFO L85 PathProgramCache]: Analyzing trace with hash -236307455, now seen corresponding path program 1 times [2024-11-20 22:04:13,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:13,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903922291] [2024-11-20 22:04:13,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:13,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:13,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:13,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903922291] [2024-11-20 22:04:13,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903922291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955616673] [2024-11-20 22:04:13,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:13,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:13,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:13,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:13,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:04:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:13,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:04:13,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:13,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:13,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955616673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:13,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:13,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-20 22:04:13,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011576265] [2024-11-20 22:04:13,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:13,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 22:04:13,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:13,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 22:04:13,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 22:04:13,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:13,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 133 flow. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:13,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:13,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:13,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:13,824 INFO L124 PetriNetUnfolderBase]: 1278/1960 cut-off events. [2024-11-20 22:04:13,824 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2024-11-20 22:04:13,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4687 conditions, 1960 events. 1278/1960 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 9891 event pairs, 1054 based on Foata normal form. 3/1565 useless extension candidates. Maximal degree in co-relation 4224. Up to 1884 conditions per place. [2024-11-20 22:04:13,875 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 30 selfloop transitions, 13 changer transitions 0/53 dead transitions. [2024-11-20 22:04:13,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 53 transitions, 249 flow [2024-11-20 22:04:13,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:04:13,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:04:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 175 transitions. [2024-11-20 22:04:13,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2024-11-20 22:04:13,878 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 133 flow. Second operand 10 states and 175 transitions. [2024-11-20 22:04:13,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 53 transitions, 249 flow [2024-11-20 22:04:13,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:13,881 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 204 flow [2024-11-20 22:04:13,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=204, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2024-11-20 22:04:13,883 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-20 22:04:13,883 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 204 flow [2024-11-20 22:04:13,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:13,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:13,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:13,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 22:04:14,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-20 22:04:14,089 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:14,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1198402201, now seen corresponding path program 1 times [2024-11-20 22:04:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:14,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482544963] [2024-11-20 22:04:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:14,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:14,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482544963] [2024-11-20 22:04:14,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482544963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:14,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:14,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606733596] [2024-11-20 22:04:14,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:14,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 22:04:14,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:14,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 22:04:14,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 22:04:14,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-20 22:04:14,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:14,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:14,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-20 22:04:14,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:14,332 INFO L124 PetriNetUnfolderBase]: 1117/1720 cut-off events. [2024-11-20 22:04:14,333 INFO L125 PetriNetUnfolderBase]: For 351/351 co-relation queries the response was YES. [2024-11-20 22:04:14,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4055 conditions, 1720 events. 1117/1720 cut-off events. For 351/351 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 8440 event pairs, 936 based on Foata normal form. 79/1422 useless extension candidates. Maximal degree in co-relation 4019. Up to 1639 conditions per place. [2024-11-20 22:04:14,345 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 34 selfloop transitions, 5 changer transitions 1/51 dead transitions. [2024-11-20 22:04:14,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 51 transitions, 274 flow [2024-11-20 22:04:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 22:04:14,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 22:04:14,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 89 transitions. [2024-11-20 22:04:14,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45408163265306123 [2024-11-20 22:04:14,348 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 204 flow. Second operand 4 states and 89 transitions. [2024-11-20 22:04:14,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 51 transitions, 274 flow [2024-11-20 22:04:14,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 259 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-20 22:04:14,352 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 184 flow [2024-11-20 22:04:14,353 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-20 22:04:14,353 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-11-20 22:04:14,354 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 184 flow [2024-11-20 22:04:14,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:14,354 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:14,355 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:14,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 22:04:14,355 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:14,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash 543819076, now seen corresponding path program 1 times [2024-11-20 22:04:14,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:14,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233414608] [2024-11-20 22:04:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:14,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:14,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:14,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:14,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233414608] [2024-11-20 22:04:14,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233414608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:14,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215499111] [2024-11-20 22:04:14,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:14,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:14,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:14,516 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:14,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 22:04:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:14,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:04:14,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:14,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:14,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 22:04:14,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215499111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:14,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 22:04:14,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-20 22:04:14,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878539414] [2024-11-20 22:04:14,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:14,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:04:14,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:14,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:04:14,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 22:04:14,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-20 22:04:14,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 184 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:14,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:14,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-20 22:04:14,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:14,693 INFO L124 PetriNetUnfolderBase]: 467/780 cut-off events. [2024-11-20 22:04:14,693 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-20 22:04:14,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 780 events. 467/780 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3422 event pairs, 378 based on Foata normal form. 0/715 useless extension candidates. Maximal degree in co-relation 1695. Up to 706 conditions per place. [2024-11-20 22:04:14,697 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 33 selfloop transitions, 1 changer transitions 1/46 dead transitions. [2024-11-20 22:04:14,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 238 flow [2024-11-20 22:04:14,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:04:14,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:04:14,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2024-11-20 22:04:14,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4965986394557823 [2024-11-20 22:04:14,699 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 184 flow. Second operand 3 states and 73 transitions. [2024-11-20 22:04:14,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 238 flow [2024-11-20 22:04:14,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 46 transitions, 232 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:04:14,701 INFO L231 Difference]: Finished difference. Result has 55 places, 45 transitions, 162 flow [2024-11-20 22:04:14,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=55, PETRI_TRANSITIONS=45} [2024-11-20 22:04:14,702 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2024-11-20 22:04:14,702 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 162 flow [2024-11-20 22:04:14,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:14,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:14,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:14,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 22:04:14,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:14,904 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:14,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:14,904 INFO L85 PathProgramCache]: Analyzing trace with hash -368223706, now seen corresponding path program 1 times [2024-11-20 22:04:14,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:14,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931569595] [2024-11-20 22:04:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:14,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:14,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:14,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:14,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931569595] [2024-11-20 22:04:14,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931569595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:14,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:14,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:04:14,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670849895] [2024-11-20 22:04:14,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:14,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:04:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:14,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:04:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:04:14,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:14,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 162 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:14,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:14,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:14,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:15,051 INFO L124 PetriNetUnfolderBase]: 467/760 cut-off events. [2024-11-20 22:04:15,051 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-11-20 22:04:15,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 760 events. 467/760 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3201 event pairs, 378 based on Foata normal form. 41/745 useless extension candidates. Maximal degree in co-relation 1692. Up to 706 conditions per place. [2024-11-20 22:04:15,056 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 34 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2024-11-20 22:04:15,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 230 flow [2024-11-20 22:04:15,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:04:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:04:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-11-20 22:04:15,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43537414965986393 [2024-11-20 22:04:15,058 INFO L175 Difference]: Start difference. First operand has 55 places, 45 transitions, 162 flow. Second operand 3 states and 64 transitions. [2024-11-20 22:04:15,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 230 flow [2024-11-20 22:04:15,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 44 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:15,060 INFO L231 Difference]: Finished difference. Result has 54 places, 44 transitions, 161 flow [2024-11-20 22:04:15,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2024-11-20 22:04:15,061 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 3 predicate places. [2024-11-20 22:04:15,061 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 161 flow [2024-11-20 22:04:15,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:15,062 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:15,062 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:15,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 22:04:15,062 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:15,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1469967613, now seen corresponding path program 1 times [2024-11-20 22:04:15,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:15,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142100246] [2024-11-20 22:04:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:15,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:15,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:15,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142100246] [2024-11-20 22:04:15,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142100246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:15,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:15,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:15,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620061744] [2024-11-20 22:04:15,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:15,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:04:15,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:15,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:04:15,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:04:15,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 49 [2024-11-20 22:04:15,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:15,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:15,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 49 [2024-11-20 22:04:15,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:15,197 INFO L124 PetriNetUnfolderBase]: 274/561 cut-off events. [2024-11-20 22:04:15,197 INFO L125 PetriNetUnfolderBase]: For 96/103 co-relation queries the response was YES. [2024-11-20 22:04:15,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 561 events. 274/561 cut-off events. For 96/103 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2561 event pairs, 86 based on Foata normal form. 9/558 useless extension candidates. Maximal degree in co-relation 1175. Up to 313 conditions per place. [2024-11-20 22:04:15,201 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 44 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2024-11-20 22:04:15,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 288 flow [2024-11-20 22:04:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:04:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:04:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-20 22:04:15,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5578231292517006 [2024-11-20 22:04:15,202 INFO L175 Difference]: Start difference. First operand has 54 places, 44 transitions, 161 flow. Second operand 3 states and 82 transitions. [2024-11-20 22:04:15,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 288 flow [2024-11-20 22:04:15,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 57 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:04:15,204 INFO L231 Difference]: Finished difference. Result has 56 places, 46 transitions, 183 flow [2024-11-20 22:04:15,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=56, PETRI_TRANSITIONS=46} [2024-11-20 22:04:15,205 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2024-11-20 22:04:15,205 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 46 transitions, 183 flow [2024-11-20 22:04:15,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:15,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:15,205 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-20 22:04:15,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 22:04:15,206 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:15,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash 264217243, now seen corresponding path program 2 times [2024-11-20 22:04:15,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:15,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303144174] [2024-11-20 22:04:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:15,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:04:15,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303144174] [2024-11-20 22:04:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303144174] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:04:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463484839] [2024-11-20 22:04:15,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:04:15,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:04:15,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:04:15,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 22:04:15,408 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:04:15,409 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:04:15,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:04:15,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:04:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:04:15,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:04:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:04:15,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463484839] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:04:15,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:04:15,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-20 22:04:15,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977716579] [2024-11-20 22:04:15,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:04:15,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 22:04:15,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:15,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 22:04:15,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-20 22:04:15,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:15,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 46 transitions, 183 flow. Second operand has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:15,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:15,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:15,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:15,778 INFO L124 PetriNetUnfolderBase]: 275/524 cut-off events. [2024-11-20 22:04:15,779 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2024-11-20 22:04:15,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1274 conditions, 524 events. 275/524 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2209 event pairs, 206 based on Foata normal form. 2/505 useless extension candidates. Maximal degree in co-relation 1259. Up to 430 conditions per place. [2024-11-20 22:04:15,782 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 21 selfloop transitions, 18 changer transitions 0/48 dead transitions. [2024-11-20 22:04:15,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 48 transitions, 268 flow [2024-11-20 22:04:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 22:04:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-20 22:04:15,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 221 transitions. [2024-11-20 22:04:15,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32215743440233235 [2024-11-20 22:04:15,784 INFO L175 Difference]: Start difference. First operand has 56 places, 46 transitions, 183 flow. Second operand 14 states and 221 transitions. [2024-11-20 22:04:15,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 48 transitions, 268 flow [2024-11-20 22:04:15,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 48 transitions, 243 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-20 22:04:15,786 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 201 flow [2024-11-20 22:04:15,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=201, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2024-11-20 22:04:15,787 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-20 22:04:15,787 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 201 flow [2024-11-20 22:04:15,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.142857142857142) internal successors, (198), 14 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:15,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:04:15,789 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:15,798 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 22:04:15,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:04:15,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-20 22:04:15,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:04:15,990 INFO L85 PathProgramCache]: Analyzing trace with hash 709609888, now seen corresponding path program 1 times [2024-11-20 22:04:15,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:04:15,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205539442] [2024-11-20 22:04:15,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:04:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:04:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:04:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-20 22:04:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:04:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205539442] [2024-11-20 22:04:16,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205539442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:04:16,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:04:16,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 22:04:16,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625520033] [2024-11-20 22:04:16,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:04:16,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:04:16,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:04:16,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:04:16,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:04:16,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 49 [2024-11-20 22:04:16,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:16,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:04:16,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 49 [2024-11-20 22:04:16,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:04:16,134 INFO L124 PetriNetUnfolderBase]: 275/552 cut-off events. [2024-11-20 22:04:16,135 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-20 22:04:16,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 552 events. 275/552 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2384 event pairs, 140 based on Foata normal form. 38/566 useless extension candidates. Maximal degree in co-relation 1182. Up to 326 conditions per place. [2024-11-20 22:04:16,136 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2024-11-20 22:04:16,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 335 flow [2024-11-20 22:04:16,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:04:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:04:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2024-11-20 22:04:16,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5170068027210885 [2024-11-20 22:04:16,138 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 201 flow. Second operand 3 states and 76 transitions. [2024-11-20 22:04:16,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 335 flow [2024-11-20 22:04:16,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 60 transitions, 267 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-20 22:04:16,140 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-11-20 22:04:16,140 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-11-20 22:04:16,140 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-20 22:04:16,141 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-11-20 22:04:16,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 22:04:16,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-20 22:04:16,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-20 22:04:16,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-20 22:04:16,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-20 22:04:16,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-20 22:04:16,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-20 22:04:16,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-20 22:04:16,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-20 22:04:16,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-20 22:04:16,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 22:04:16,147 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:04:16,153 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 22:04:16,153 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 22:04:16,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:04:16 BasicIcfg [2024-11-20 22:04:16,158 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 22:04:16,158 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:04:16,159 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:04:16,159 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:04:16,159 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:04:10" (3/4) ... [2024-11-20 22:04:16,161 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 22:04:16,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 22:04:16,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 22:04:16,164 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-20 22:04:16,171 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 91 nodes and edges [2024-11-20 22:04:16,171 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-20 22:04:16,172 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-20 22:04:16,172 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 22:04:16,265 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:04:16,266 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 22:04:16,266 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:04:16,266 INFO L158 Benchmark]: Toolchain (without parser) took 6473.49ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 93.8MB in the beginning and 65.3MB in the end (delta: 28.5MB). Peak memory consumption was 105.5MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,266 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:04:16,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.20ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 125.7MB in the end (delta: -31.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.86ms. Allocated memory is still 157.3MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,270 INFO L158 Benchmark]: Boogie Preprocessor took 42.86ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 120.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,270 INFO L158 Benchmark]: RCFGBuilder took 764.14ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 120.9MB in the beginning and 150.8MB in the end (delta: -29.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,270 INFO L158 Benchmark]: TraceAbstraction took 5158.37ms. Allocated memory was 188.7MB in the beginning and 234.9MB in the end (delta: 46.1MB). Free memory was 150.8MB in the beginning and 70.5MB in the end (delta: 80.3MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,271 INFO L158 Benchmark]: Witness Printer took 107.37ms. Allocated memory is still 234.9MB. Free memory was 70.5MB in the beginning and 65.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:04:16,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 96.5MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.20ms. Allocated memory is still 157.3MB. Free memory was 93.8MB in the beginning and 125.7MB in the end (delta: -31.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.86ms. Allocated memory is still 157.3MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.86ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 120.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 764.14ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 120.9MB in the beginning and 150.8MB in the end (delta: -29.9MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5158.37ms. Allocated memory was 188.7MB in the beginning and 234.9MB in the end (delta: 46.1MB). Free memory was 150.8MB in the beginning and 70.5MB in the end (delta: 80.3MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. * Witness Printer took 107.37ms. Allocated memory is still 234.9MB. Free memory was 70.5MB in the beginning and 65.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 80 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 917 IncrementalHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 10 mSDtfsCounter, 917 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 106 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=4, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 141 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 148 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 9 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 50/108 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 22:04:16,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE